%0 Journal Article %A Radivoj Petrović %A Dobrila Petrović %T Testing and Validation of an Expert System for Advising on Spares for Maintenance Purposes %J Yugoslav journal of operations research %D 1994 %P 223 %V 4 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/YJOR_1994_4_2_a9/ %G en %F YJOR_1994_4_2_a9